Home / 21,211.06-29,269.97-11,649.08

Finding the Fourth Proportional to 21,211.06, 29,269.97 and 11,649.08

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Solution

The fourth proportional to 21,211.06, 29,269.97 and 11,649.08 is: 16,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,211.06 : 29,269.97 = 11,649.08 : x
  2. Step 2: Convert to fraction form
    21,211.06/29,269.97 = 11,649.08/x
  3. Step 3: Cross multiply
    21,211.06x = 29,269.97 × 11,649.08
  4. Step 4: Simplify right side
    21,211.06x = 340,968,322.01
  5. Step 5: Solve for x
    x = 340,968,322.01/21,211.06
  6. Step 6: Final answer
    x = 16,075.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.